When there is knee pain after jumping rope may be related to improper exercise, ligament strain within the joint, knee arthritis, etc., which can be treated by proper rest, fixing the knee joint with a plaster, using medication and so on. 1. Improper exercise: insufficient warm-up exercise before jumping rope, improper posture when jumping rope may lead to knee pain after jumping rope. At this time, you should rest properly and reduce the activity of the knee, so as to relieve knee pain. 2. Intra-articular ligament strain: jumping rope requires the knee to carry out repeated flexion and extension activities, coupled with excessive impact on the knee when jumping rope, it is very likely to make the knee joint ligament strain and thus lead to knee pain. At this time, you should go to the regular hospital in a timely manner, the professional doctor to use a plaster to fix the knee joint, avoid moving the knee joint, so as to alleviate the knee pain. 3. Knee osteoarthritis: If the patient suffers from knee osteoarthritis, jumping rope may aggravate the pain in the knee joint. Patients can use local topical medications such as flurbiprofen gel paste to effectively relieve mild to moderate pain in the knee joint. When symptoms of knee pain occur after jumping rope, you should promptly go to the hospital and receive professional treatment from your doctor. The use of the above medications is subject to medical advice.